doomemacs/modules/feature/snippets/autoload/evil.el
Henrik Lissner c7254e7bdc
Major optimization refactor, across the board
+ enable lexical-scope everywhere (lexical-binding = t): ~5-10% faster
  startup; ~5-20% general boost
+ reduce consing, function calls & garbage collection by preferring
  cl-loop & dolist over lambda closures (for mapc[ar], add-hook, and
  various cl-lib filter/map/reduce functions) -- where possible
+ prefer functions with dedicated opcodes, like assq (see byte-defop's
  in bytecomp.el for more)
+ prefer pcase & cond (faster) over cl-case
+ general refactor for code readability
+ ensure naming & style conventions are adhered to
+ appease byte-compiler by marking unused variables with underscore
+ defer minor mode activation to after-init, emacs-startup or
  window-setup hooks; a customization opportunity for users + ensures
  custom functionality won't interfere with startup.
2017-06-09 00:47:45 +02:00

18 lines
754 B
EmacsLisp

;;; feature/snippets/autoload/evil.el -*- lexical-binding: t; -*-
;;;###autoload
(defun +snippets/expand-on-region ()
"Only use this with `evil-mode'. Expands a snippet around a selected region
and switches to insert mode if there are editable fields."
(interactive)
(when (evil-visual-state-p)
(evil-visual-select evil-visual-beginning evil-visual-end 'inclusive))
(cl-letf (((symbol-function 'region-beginning) (lambda () evil-visual-beginning))
((symbol-function 'region-end) (lambda () evil-visual-end)))
(yas-insert-snippet))
(when-let (snippet (car-safe (yas-active-snippets)))
(let ((fields (yas--snippet-fields snippet)))
(evil-insert-state +1)
(unless fields (evil-change-state 'normal)))))